(19)

(11)

EP 2 004 733 A2

(12)

(88) Date of publication A3: 13.12.2007 (43) Date of publication: 24.12.2008 Bulletin 2008/52 (21) Application number: 07734107.1 (22) Date of filing: 26.03.2007

(51) International Patent Classification (IPC):  C08J 5/00(2006.01) (86) International application number: PCT/IB2007/000781 (87) International publication number: WO 2007/110758 (04.10.2007 Gazette 2007/40)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR (30) Priority: 24.03.2006 GB 0605929 (71) Applicants: K.U. Leuven Research and Development 3000 Leuven (BE) HERMES SELLIER 75008 Paris (FR)	(72) Inventors: VERPOEST, Ignace B-3010 Kessel-Lo (BE) VAN VUURE, Aart Willem NL-6668 RANDWIJK (NL) EL ASMAR, Nedda BE-21OO ANTWERPEN (BE) VANDERBEKE, Jan B-8520 KUURNE (BE) (74) Representative: Ulmann, Catherine Claire et al SANTARELLI 14, avenue de la Grande Armée B.P. 237 75822 Paris Cedex 17 75822 Paris Cedex 17 (FR)